Variant 4-1248924-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001377186.1(CTBP1):c.32T>C(p.Leu11Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000039 in 999,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000043 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

CTBP1
NM_001377186.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.194

Variant links:

Genes affected

CTBP1 (HGNC:2494): (C-terminal binding protein 1) This gene encodes a protein that binds to the C-terminus of adenovirus E1A proteins. This phosphoprotein is a transcriptional repressor and may play a role during cellular proliferation. This protein and the product of a second closely related gene, CTBP2, can dimerize. Both proteins can also interact with a polycomb group protein complex which participates in regulation of gene expression during development. Alternative splicing of transcripts from this gene results in multiple transcript variants. [provided by RefSeq, Jul 2008]

CTBP1 links:

CTBP1 (HGNC:):

CTBP1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.011010677).

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTBP1	NM_001012614.2 linkuse as main transcript	c.-197T>C		5_prime_UTR_variant	1/10	ENST00000382952.8	NP_001012632.1	Q13363-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTBP1	ENST00000382952.8 linkuse as main transcript	c.-197T>C		5_prime_UTR_variant	1/10	1	NM_001012614.2	ENSP00000372411.3		Q13363-2

Frequencies

GnomAD3 genomes

AF:

0.0000434

AC:

AN:

138136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00114

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000158

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000353

AC:

AN:

22672

Hom.:

AF XY:

0.000412

AC XY:

AN XY:

14556

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00105

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000383

AC:

AN:

861112

Hom.:

Cov.:

AF XY:

0.0000521

AC XY:

AN XY:

403236

show subpopulations

Gnomad4 AFR exome

AF:

0.0000622

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000801

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000518

Gnomad4 OTH exome

AF:

0.000212

GnomAD4 genome

AF:

0.0000434

AC:

AN:

138136

Hom.:

Cov.:

AF XY:

0.0000448

AC XY:

AN XY:

66966

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00114

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000158

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.000447

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 07, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with CTBP1-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 11 of the CTBP1 protein (p.Leu11Pro). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.014

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.83

DEOGEN2

Benign

0.34

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.61

M_CAP

Pathogenic

0.45

MetaRNN

Benign

0.011

MetaSVM

Benign

-0.96

MutationAssessor

Benign

1.4

PrimateAI

Uncertain

0.75

PROVEAN

Benign

1.1

REVEL

Uncertain

0.32

Sift

Benign

0.32

Sift4G

Benign

0.34

Polyphen

0.0

Vest4

0.26

MutPred

0.36

Gain of loop (P = 0.0079);

MVP

0.72

MPC

2.4

ClinPred

0.039

GERP RS

1.3

Varity_R

0.15

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over